Soldiers rest after their rehearsal for the Republic Day parade on a winter morning in New Delhi, January 8, 2018. (Photo by Adnan Abidi/Reuters)

Members of Kolkata Mounted Police take part in a rehearsal for the Republic Day parade on a foggy winter morning in Kolkata, January 17, 2018. (Photo by Rupak De Chowdhuri/Reuters)

A stunt performer rides a motorcycle on the walls of the “Well of Death” at the Magh Mela fair in Allahabad, India January 17, 2018. (Photo by Jitendra Prakash/Reuters)

Buildings are seen shrouded in smog in Mumbai, India January 17, 2018. (Photo by Shailesh Andrade/Reuters)

Workers of Torrent Power Limited remove kites and thread tangled up in electric power cables after the end of the kite flying season in Ahmedabad, India, January 18, 2018. (Photo by Amit Dave/Reuters)

Indian Navy soldiers stand guard to rifles during a rehearsal for the Republic Day parade on a winter morning in New Delhi, India, January 18, 2018. (Photo by Saumya Khandelwal/Reuters)

People belonging to the Tiwa tribe participate in a community fishing event as part of celebrations for the Bhogali Bihu, or the harvest festival of Assam, in Morigaon district, in Assam, India, January 16, 2018. (Photo by Anuwar Hazarika/Reuters)

A man washes his clothes, as another rows a boat in the Yamuna River, on a cold winter morning in New Delhi, India January 17, 2018. (Photo by Adnan Abidi/Reuters)

A man transports vegetables on a bicycle during a foggy winter morning in Agartala, India, January 8, 2018. (Photo by Jayanta Dey/Reuters)

A boy begs for alms at the Jonbeel Mela festival, where people belonging to different tribes exchange their merchandise with locals through a barter system, in the Morigaon district, in the northeastern state of Assam, India on January 19, 2018. (Photo by Anuwar Hazarika/Reuters)

An Indian monk takes holy smoke at Babughat transit camp ahead of Ganga Sagar annual fair in Calcutta, eastern India, 08 January 2018. The Ganga Sagar Fair is an annual gathering of Hindu pilgrims during Makar Sankranti at Sagar Island, 130 km south of Calcutta in West Bengal, to take a dip in sacred waters of Ganga River before she merges in the Bay of Bengal. (Photo by Piyal Adhikary/EPA/EFE)

An Indian villager tries to tame a bull during a traditional bull-taming festival called “Jallikattu”, in the village of Palamedu, near Madurai, Tamil Nadu state, India, Monday, January 15, 2018. Jallikattu involves releasing a bull into a crowd of people who attempt to grab it and ride it. (Photo by R. Parthibhan/AP Photo)

An Indian participant tries to control a bull during an annual bull taming event “Jallikattu” in the village of Palamedu on the outskirts of Madurai on January 15, 2018. (Photo by Arun Sankar/AFP Photo)

A villager is pinned down by a bull as another attempts to control him during the annual bull-taming festival called Jallikattu, which is part of south India's Pongal harvest festival of Pongal, on the outskirts of the southern city of Madurai, India, January 15, 2018. (Photo by Abhishek N. Chinnappa/Reuters)

An Indian family warms up around a fire along a roadside in New Delhi on January 8, 2018. (Photo by Sajjad Hussain/AFP Photo)

Dogs look on as an Indian bicycle rickshaw driver passes down an alleyway on a foggy morning in New Delhi on January 7, 2018. (Photo by Noemi Cassanelli/AFP Photo)

An Indian boatman rows to tie up his boat at Sangam during the annual Magh Mela in Allahabad on January 11, 2018. (Photo by Sanjay Kanojia/AFP Photo)

A view of temporary tents of devotees as they arrive at Sangam, the confluence of the rivers Ganges, Yamuna and mythical Saraswati, during the annual Magh Mela festival in Allahabad on January 15, 2018. (Photo by Sanjay Kanojia/AFP Photo)

Indian Hindu devotees dry clothing after bathing during the annual “Magh Mela” gathering at Sangam, the confluence of the rivers Ganges, Yamuna and the mythical Saraswati, in Allahabad on January 15, 2018. (Photo by Sanjay Kanojia/AFP Photo)

Kashmiri men carry grass for cattle on the outskirts of Srinagar on January 17, 2018. (Photo by Tauseef Mustafa/AFP Photo)

Indian children buy balloons from a street vendor in Jalandhar on January 10, 2018. (Photo by Shammi Mehra/AFP Photo)